"This Remarkable Thing"
Wow, this is beautiful and mind stretching. Well worth a viewing. The universe(s) is/are more wondrous than anything imagined by the mind of man!
We can only perceive our perceptions - consciousness is the screen upon which reality is fabricated and apprehended based on information gleaned by our limited senses. We cannot be sure the construct is true, complete, or that there is an outside universe at all.